<template>
  <div class="app-container">
    <el-form
      :model="queryParams"
      ref="queryForm"
      size="small"
      :inline="true"
      v-show="showSearch"
      label-width="68px"
    >
      <!-- <el-form-item label="用户ID" prop="userId">
        <el-input
          v-model="queryParams.userId"
          placeholder="请输入用户ID"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="订单总金额" prop="totalPrice">
        <el-input
          v-model="queryParams.totalPrice"
          placeholder="请输入订单总金额"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item> -->
      <el-form-item>
        <el-button
          type="primary"
          icon="el-icon-search"
          size="mini"
          @click="handleQuery"
          >搜索</el-button
        >
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery"
          >重置</el-button
        >
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:orders:add']"
          >新增</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['system:orders:edit']"
          >修改</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['system:orders:remove']"
          >删除</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['system:orders:export']"
          >导出</el-button
        >
      </el-col>
      <right-toolbar
        :showSearch.sync="showSearch"
        @queryTable="getList"
      ></right-toolbar>
    </el-row>

    <el-table
      v-loading="loading"
      :data="ordersList"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="订单ID" align="center" prop="id" />
      <el-table-column label="用户ID" align="center" prop="userId" />
      <el-table-column label="订单总金额" align="center" prop="totalPrice" />
      <el-table-column label="订单状态" align="center" prop="status">
        <template slot-scope="scope">
          <el-tag
            :type="
              scope.row.status == 'pending'
                ? ''
                : scope.row.status == 'cancelled'
                ? 'danger'
                : 'success'
            "
            >{{
              scope.row.status == "pending"
                ? "待支付"
                : scope.row.status == "cancelled"
                ? "已取消"
                : "成功"
            }}</el-tag
          >
        </template>
      </el-table-column>
      <el-table-column
        label="操作"
        align="center"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['system:orders:edit']"
            >修改</el-button
          >
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['system:orders:remove']"
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改订单对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="60%" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="用户ID" prop="userId">
          <el-input v-model="form.userId" placeholder="请输入用户ID" />
        </el-form-item>
        <el-form-item label="订单总金额" prop="totalPrice">
          <el-input v-model="form.totalPrice" placeholder="请输入订单总金额" />
        </el-form-item>
        <el-divider content-position="center">订单详情信息</el-divider>
        <el-row :gutter="10" class="mb8">
          <el-col :span="1.5">
            <el-button
              type="primary"
              icon="el-icon-plus"
              size="mini"
              @click="handleAddOrderItems"
              >添加</el-button
            >
          </el-col>
          <el-col :span="1.5">
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="handleDeleteOrderItems"
              >删除</el-button
            >
          </el-col>
        </el-row>
        <el-table
          :data="orderItemsList"
          :row-class-name="rowOrderItemsIndex"
          @selection-change="handleOrderItemsSelectionChange"
          ref="orderItems"
        >
          <el-table-column type="selection" width="50" align="center" />
          <el-table-column
            label="序号"
            align="center"
            prop="index"
            width="50"
          />

          <el-table-column label="订单类型" prop="orderType">
            <template slot-scope="scope">
              <el-select
                v-model="scope.row.orderType"
                placeholder="请选择订单类型"
              >
                <el-option label="菜品" :value="1" />
                <el-option label="物品" :value="2" />
              </el-select>
            </template>
          </el-table-column>
          <el-table-column label="商品ID" prop="productId">
            <template slot-scope="scope">
              <el-input
                v-model="scope.row.productId"
                placeholder="请输入商品ID"
              />
            </template>
          </el-table-column>
          <el-table-column label="商品名称" prop="productName">
            <template slot-scope="scope">
              <el-input
                v-model="scope.row.productName"
                placeholder="请输入商品名称"
              />
            </template>
          </el-table-column>
          <el-table-column label="购买数量" prop="quantity">
            <template slot-scope="scope">
              <el-input
                v-model="scope.row.quantity"
                placeholder="请输入购买数量"
              />
            </template>
          </el-table-column>
          <el-table-column label="商品单价" prop="price">
            <template slot-scope="scope">
              <el-input
                v-model="scope.row.price"
                placeholder="请输入商品单价"
              />
            </template>
          </el-table-column>
          <el-table-column label="小计金额" prop="subtotal">
            <template slot-scope="scope">
              <el-input
                v-model="scope.row.subtotal"
                placeholder="请输入小计金额"
              />
            </template>
          </el-table-column>
        </el-table>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {
  listOrders,
  getOrders,
  delOrders,
  addOrders,
  updateOrders,
} from "@/api/system/orders";

export default {
  name: "Orders",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 子表选中数据
      checkedOrderItems: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 订单表格数据
      ordersList: [],
      // 订单详情表格数据
      orderItemsList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        userId: null,
        totalPrice: null,
        status: null,
        createById: null,
        updateById: null,
        isDelete: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        userId: [
          { required: true, message: "用户ID不能为空", trigger: "blur" },
        ],
        totalPrice: [
          { required: true, message: "订单总金额不能为空", trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询订单列表 */
    getList() {
      this.loading = true;
      listOrders(this.queryParams).then((response) => {
        this.ordersList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        userId: null,
        totalPrice: null,
        status: null,
        createBy: null,
        createById: null,
        createTime: null,
        updateBy: null,
        updateById: null,
        updateTime: null,
        isDelete: null,
      };
      this.orderItemsList = [];
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map((item) => item.id);
      this.single = selection.length !== 1;
      this.multiple = !selection.length;
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加订单";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids;
      getOrders(id).then((response) => {
        this.form = response.data;
        this.orderItemsList = response.data.orderItemsList;
        this.open = true;
        this.title = "修改订单";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate((valid) => {
        if (valid) {
          this.form.orderItemsList = this.orderItemsList;
          if (this.form.id != null) {
            updateOrders(this.form).then((response) => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addOrders(this.form).then((response) => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal
        .confirm('是否确认删除订单编号为"' + ids + '"的数据项？')
        .then(function () {
          return delOrders(ids);
        })
        .then(() => {
          this.getList();
          this.$modal.msgSuccess("删除成功");
        })
        .catch(() => {});
    },
    /** 订单详情序号 */
    rowOrderItemsIndex({ row, rowIndex }) {
      row.index = rowIndex + 1;
    },
    /** 订单详情添加按钮操作 */
    handleAddOrderItems() {
      let obj = {};
      obj.productId = "";
      obj.orderType = "";
      obj.quantity = "";
      obj.price = "";
      obj.subtotal = "";
      this.orderItemsList.push(obj);
    },
    /** 订单详情删除按钮操作 */
    handleDeleteOrderItems() {
      if (this.checkedOrderItems.length == 0) {
        this.$modal.msgError("请先选择要删除的订单详情数据");
      } else {
        const orderItemsList = this.orderItemsList;
        const checkedOrderItems = this.checkedOrderItems;
        this.orderItemsList = orderItemsList.filter(function (item) {
          return checkedOrderItems.indexOf(item.index) == -1;
        });
      }
    },
    /** 复选框选中数据 */
    handleOrderItemsSelectionChange(selection) {
      this.checkedOrderItems = selection.map((item) => item.index);
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download(
        "system/orders/export",
        {
          ...this.queryParams,
        },
        `orders_${new Date().getTime()}.xlsx`
      );
    },
  },
};
</script>
